51324602688 has 336 divisors, whose sum is σ = 155136518784. Its totient is φ = 16206704640.

The previous prime is 51324602647. The next prime is 51324602717. The reversal of 51324602688 is 88620642315.

51324602688 is a `hidden beast` number, since 5 + 1 + 32 + 4 + 602 + 6 + 8 + 8 = 666.

51324602688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161907106 + ... + 161907422.

Almost surely, 2^51324602688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51324602688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77568259392).

51324602688 is an abundant number, since it is smaller than the sum of its proper divisors (103811916096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51324602688 is a wasteful number, since it uses less digits than its factorization.

51324602688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 51324602688 in words is "fifty-one billion, three hundred twenty-four million, six hundred two thousand, six hundred eighty-eight".